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Electrical Resistance and Thermoelectric Power of the Metastable Phases in Tellurium-Base Alloys


Tsuei, Chang-chyi (1966) Electrical Resistance and Thermoelectric Power of the Metastable Phases in Tellurium-Base Alloys. Dissertation (Ph.D.), California Institute of Technology. doi:10.7907/4NR0-FE43.


By using techniques of rapid quenching from the melt, metastable phases have been obtained in ternary alloys which contain tellurium as a major component and two of the three noble metals (Cu, Ag, Au) as minor components. The metastable phases found in this investigation are either simple cubic or amorphous. The formation of the simple cubic phase is discussed. The electrical resistance and the thermoelectric power of the simple cubic alloy (Au30Te70) have been measured and interpreted in terms of atomic bondings. The semiconducting properties of a metastable amorphous alloy Au5Cu25Te70) have been measured. The experimental results are discussed in connection with a theoretical consideration of the validity of band theory in an amorphous solid. The existence of extrinsic conduction in an amorphous semiconductor is suggested by the result of electrical resistance and thermoelectric power measurements.

Item Type:Thesis (Dissertation (Ph.D.))
Subject Keywords:(Materials Science)
Degree Grantor:California Institute of Technology
Division:Engineering and Applied Science
Major Option:Materials Science
Thesis Availability:Public (worldwide access)
Research Advisor(s):
  • Duwez, Pol E.
Thesis Committee:
  • Unknown, Unknown
Defense Date:26 May 1966
Record Number:CaltechTHESIS:07222014-110401626
Persistent URL:
Default Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:8583
Deposited By: Benjamin Perez
Deposited On:22 Jul 2014 18:19
Last Modified:27 Feb 2024 18:18

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